Of bridgeport



ritueel 5mm f @met @more A. C. llO]5l5S,-()F BRIDGE-PORT, CONNECTICUT.

Letters Patent No. 94,744, dated September 14, 1869.

IMPROVEMENT IN MACHINES FOR lllOiRMINC-iY EXTERNAL RECESSES IN THE HEADS OF CARTRIDGE-SHLLS.

The ichcdul..l referred to in these Letters Patent and making part of the same.

To all whom it may concern 'lie it known that I, A. C. I-IOBBS, of Bridgeport, in the county of Fairfield, and State of Connecticut, have invented certain new and useful Improvements in (lartridge-li/lacllines; and l do hereby declare that the following is a iull, clear, and exact description thereof, reference heilig had to the accompanying drawings, making part of this specification, and tothe letters of reference marked thereon, like letters indicating like parts wherever they occur.

'1.o enable others skilled ih the art to construct and use my invention, l will proceed to describe it.

My invention relates toinaehines for making metalliccartridge-shells; and v .lhe invention consists in a device for detaching the shell from the machine alter it has been operated upon, as hereinafter explained. l

.Figure 1 is a lperspective view of my improved apparatus;

Figure 2 is a top plan View; and elfignre 3 is a transverse section on the line -x of lig. 1.

In constructing metallic cartridge-shells of various kinds, it is necessary' to form a cavity or depression centrally in the cnd ot the head, which is done by means of a puin-h, while the shell is held in a suitable die, and when the punch which forms the cavity is witlnlrawn, the shell adheres thereto; and unless rcmoved bel'ore the punch advances again, the shell will he crushed and-spoiled. lt is tonetihct this removal ol the shell that my invention is specially intended.y

ln the drawings- Y f V y A represents a portionoi' the trame, in which a rod 'or block, B, is arranged to'slide'to and fio, this sliding part being technically termed a,bunter.

Upon the front end ot' the bunterva portion, a, is turned oli'round, ot' a diameter slightly less than the diameter ol thehead oi' the shell E, as represented in lig. l.

From the front faro ol' this part a there projects a small punch, l', of a size eorrcspolnling with that of the cavity to he formed in the head ofthe shell.

'lhe cavity is formed bythe bunter heilig pressed againstthe end el' the shell, the punch c indenting the metal at the end, as represented in lig. 1, where the shell is shown in red, the shell heilig held in a die,

which, being of the ordinary kind, is not shown inthe drawing.

As the bunt-er is withdrawn with the shell from the die, the shell sticks fast on the punch e, as represented in red in iig. 1. To remove the shell, I secure a plate, C, loosely upon the rounded part e ofthe bunter, the plate C being held by two longitudinal arms, el, which slide in grooves formed for them inthe sides of the bunter, these arms being slotted, and held in the grooves by screws f, as shown in figs. 1 and 2.

The slots in the arms (l are of such a length as to permit the plate C to slide forward even with o r a tritle beyond the end of the part a, as shown in lig. 2; and to the frame A, in rear of plate C, are secured rigidly two pins, D. of such a length that when the hunter B is drawn back, the pla-te C strikes against their front ends, thereby stopping the plate, while the bunter continues its backward movement, until its end c is drawn hack within the plate. As the bunter thus. draws back, carrying the adhering shell E with it, the head of the shell strikes against the front ot the plate C, which thereby forces the shell off' from the punch e, the released shell falling into a receptacle below, the shell being represented thus detached in iig. 2. As the bunter moves forward, the plate C is shoved hack on the part a, as shown in fig. l, where it remains until the bunter moves hack, and causes the plate -O to strike against the pins D, which hohl it stationary while the bunter moves back to the position shown in fig. 2, the plate C stopping the shell while`the bunter continues its backward movement, until the punch e is withdrawn entirely .from the cav ity formed` by it in the head of the shell.

By this means, I insure the detaching of the shell at each withdrawal or backward movement of the bunter. The bunter is operated in the usual manner,-

by any suitable means.

Having thus described my invention-and its. operation,

What I claim, is-

,The sliding plate C, arranged to move with the bun-V 

